Lawn mower blades are available in a variety of designs and sizes. Certain blades are designed specifically for particular lawn mowers. They have a stamped part number that is referred to in the instruction manual.
For instance, a high lift blade generates a strong suction which efficiently throws clippings upwards so they can be bagged. It also provides the best airflow to avoid getting clogged in areas of dense grass.
Size
To choose the right replacement lawnmowers, you need to know the length of the blade and hole pattern of the blade. Additionally, the shear pin locating holes as well as their distance from the boss of the blade must be identified. These measurements narrow down the results of a search because they are in line with the shape and design of a specific mower blade in order to prevent damaging parts of the mower and causing vibrations.
Standard blades (also called 2-in-1 blades or lift blades) are commonly used on lawnmowers that have side discharges and lawnmowers that do not have mulching or bagging. Their back edge features a slight upturn that generates an ongoing suction and cutting.
High lift blades have a dramatic upturn to the back of the blade. They’re specifically designed for side discharge mowing. This type of blade requires more power from the engine to work well and can cost more in fuel, however it’s great for grasses with thicker blades that are difficult to cut with standard blades.
Material
The blade of a lawn mower is generally made from steel that is durable. Metals like iron or other are a possibility. Steel is the most popular metal for mower blades since it has a mix of robustness and durability. It is usually treated with heat to harden it. Tempering increases the durability and toughness and also the resistance to corrosion.
It is more beneficial to employ high carbon steel for mowing rather than low carbon steel since it is more durable. It can withstand the impact of rocks, tree stumps and other things that might be thrown at the blade and not damage it.
The best way to keep the blade of a lawn mower is to use it regularly and maintain it at a high-quality sharpness. The blade must also be balanced. It is possible to do this by placing a small nail in the board and then using a file over it to move the nail until it touches the center of the blade.
Sharpness
Sharpness of blades depends on many aspects, such as the dimension of the lawn and the frequency of use. Sharpening is more frequent when large lawns have a lot of pebbles, trees, rocks and weeds. A dull blade will wear out faster if you use the blade regularly.
Sharp cutting edges are essential for a smooth and aesthetically pleasing cut. A sharpening blade is a great tool to help achieve this. It works like the bench grinder, however, it is smaller and cheaper.
It is important to regularly balance the blade, especially after sharpening. Sharpening the blade can cause it to be imbalanced since it takes more metal off one side than from the other. Place the blade through the bolt hole on an anchor to verify its balance. If one side is tilted higher than one, the blade needs to be filed further to ensure it is balanced.
Maintenance
Utilize a tool specifically designed to sharpen a zesty mower blade sharpeners blade. It is similar to a drill, but has an edged stone made to be able to grip the edge and leave no room for error. This tool is faster and more precise than hand filing. Verify the balance of the blade by placing it on a bolt that is inserted into the hole. If one side is lower than the other, it will need to be filed a bit more to be properly balanced.
To stop an engine from starting while working on a cutting blade, turn off the engine and take out the spark plug cable. Block the blade with blocks to hold it in place while you loosen the bolt holding it using a wrench or ratchet. When reinstalling the blade, remember the direction of the blade to ensure that it is mounted in the right place. Spray a bit of WD-40 or similar lubricant on the bolt for mounting prior to tightening it.
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